Linkage type multi-point clamping mechanism for automobile long framework
By using a linkage multi-point clamping mechanism, multi-point synchronous clamping is achieved with a single drive component, which solves the problems of offset and vibration during the processing of long skeletons, improves processing quality and reduces costs.
Patent Information
- Application Number
- CN202520495781.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In the current process of machining long car frames, when clamped from the middle alone, the two ends are prone to shifting and vibration, resulting in decreased machining quality and high maintenance costs.
It adopts a linkage multi-point clamping mechanism, which controls multi-point clamping through a single drive component. It uses a bidirectional drive assembly and linkage slide to achieve synchronous movement of the clamping plates on both sides, combined with adjustable chucks and silicone sheets to protect the workpiece.
It reduces offset and vibration during processing, improves processing quality and reduces production and maintenance costs, and adapts to the processing needs of long skeletons of different sizes.
Smart Images
Figure CN223920472U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of fixture, concretely relates to a long skeleton linkage type multi -point clamping mechanism of car. BACKGROUND
[0002] The long skeleton (such as longitudinal beam, frame etc.) of car is one of the components of car, is mainly used for the support connection of car body, and the long skeleton can be regarded as the square tube type material, and the end of long skeleton needs to be punched in the processing.
[0003] Because the workpiece is long, when the long skeleton is clamped from the middle by the general clamping mechanism, the two ends of long skeleton still produce the deviation and vibration in vertical direction, although the two ends of skeleton are clamped by multiple points, but need to be driven by multiple driving members, greatly improve the production maintenance cost, so a long skeleton linkage type multi -point clamping mechanism of car is required. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a long skeleton linkage type multi -point clamping mechanism of car, and the two ends of long skeleton can be clamped and automatically centered by a single driving member, the deviation and vibration of skeleton in the processing are reduced, the processing quality is improved, and the production maintenance cost is reduced.
[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a long skeleton linkage type multi -point clamping mechanism of car, including clamping base, the two -way drive assembly and the loading plate are fixedly connected on the clamping base, the two -way drive assembly includes drive cylinder and drive sliding seat, two linkage sliding seats are slidably connected on the clamping base and located on the side of drive sliding seat, drive connecting rod is hinged between drive sliding seat and linkage sliding seat, linkage clamping assembly is arranged on the both sides of loading plate on the clamping base, linkage clamping assembly includes linkage push arm and clamping plate, first connecting rod is hinged on the clamping base and clamping plate, second connecting rod is hinged on linkage push arm, the both ends of second connecting rod are hinged with first connecting rod on the clamping base and clamping plate respectively, and the both ends of clamping plate are detachably connected with chuck.
[0006] Further, the sliding direction of linkage sliding seat is perpendicular to the sliding direction of drive sliding seat, and the two linkage sliding seats are mirror image arranged along drive sliding seat on clamping base.
[0007] Further, the linkage push arm is fixedly connected with drive sliding seat, the side wall of clamping plate is fixedly connected with guide column, and the guide column is slidably connected with clamping base.
[0008] Further, the both ends of linkage push arm are inclined to clamping plate, and the loading plate is arranged in dislocation with clamping plate.
[0009] Further, two ends of the clamping plate are provided with adjusting grooves, and the chuck is fixed on the adjusting grooves through screws.
[0010] Further, the chuck comprises a backing plate and a silica gel sheet, the backing plate is in sliding connection with the adjusting groove, and the silica gel sheet is fixed on a clamping surface of the backing plate.
[0011] The beneficial effects of the utility model are as follows: only a single driving source is needed to control multi-point clamping actions, the linkage sliding seats on both sides can reversely and synchronously move when the driving cylinder piston rod is extended and retracted, the clamping effect is ensured, and the cost is low;
[0012] The clamping distance can be flexibly adjusted or the chuck specifications can be replaced, different length and section skeleton workpieces are adapted, and the silica gel sheet protects the workpiece surface when clamping. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a first perspective view schematic diagram of the utility model.
[0014] Figure 2 It is a second perspective view schematic diagram of the utility model.
[0015] Figure 3 It is a clamping plate of the utility model; a schematic diagram.
[0016] Figure 4 It is an automobile long skeleton placing schematic diagram.
[0017] In the drawing: 1, clamping base; 2, material loading plate; 301, driving cylinder; 302, driving sliding seat; 303, linkage sliding seat; 304, driving connecting rod; 401, linkage push arm; 402, first connecting rod; 403, second connecting rod; 5, clamping plate; 501, adjusting groove; 6, chuck; 601, backing plate; 602, silica gel sheet. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail by combining with the drawings and examples.The specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0019] REFERENCE Figures 1-4The utility model provides an automobile long skeleton linkage type multi -point clamping mechanism, including clamping base 1, fixedly connected with two -way drive assembly and load plate 2 on clamping base 1, two -way drive assembly includes drive cylinder 301 and drive slide 302, two linkage slide 303 are slidably connected with on clamping base 1 at drive slide 302 side, drive connecting rod 304 is hinged between drive slide 302 and linkage slide 303, linkage clamping assembly is arranged on both sides of load plate 2 on clamping base 1, linkage clamping assembly includes linkage push arm 401 and clamping plate 5, first connecting rod 402 are hinged on clamping base 1 and clamping plate 5, second connecting rod 403 is hinged on linkage push arm 401, and the both ends of second connecting rod 403 are hinged with first connecting rod 402 on clamping base 1 and clamping plate 5 respectively, and the both ends of clamping plate 5 are detachably connected with chuck 6.
[0020] In an embodiment of the present scheme, the sliding direction of the linkage slide 303 is perpendicular to the sliding direction of the drive slide 302. When the drive slide 302 slides towards the linkage slide 303, the two linkage slides 303 move away from each other, and vice versa. The two linkage slides 303 are mirror-imaged on the drive slide 302 on the clamping base 1. The linkage push arm 401 is fixedly connected with the drive slide 302, and the drive slide 302 is used to support and install the linkage push arm. The side wall of the clamping plate 5 is fixedly connected with a guide column, which is slidably connected with the clamping base 1. The guide column guides the clamping action of the clamping plate 5. The two ends of the linkage push arm 401 are inclined towards the clamping plate 5. The load plate 2 is arranged in a staggered manner with the clamping plate 5, so as to avoid interference between the clamping plate 5 and the load plate 2 during the clamping action of the clamping plate 5.
[0021] In an embodiment of the present scheme, the two ends of the clamping plate 5 are provided with adjusting grooves 501, and the chuck 6 is fixed on the adjusting grooves 501 by screws. The position of the chuck 6 can be adjusted, and the distance between the two chucks 6 can be adjusted according to the length of the long skeleton, so as to further improve the clamping effect. The chuck 6 includes a pad 601 and a silica gel piece 602. The pad 601 is slidably connected with the adjusting groove 501, and the silica gel piece 602 can avoid damaging the surface of the workpiece. The silica gel piece 602 is fixed on the clamping surface of the pad 601.
[0022] The working principle of the utility model is as follows: before clamping, the piston rod of the drive cylinder 301 is extended, and the two linkage slides 303 on the sides move away from each other. Under the action of the linkage slides 303, the two clamping plates 5 move away from each other. Then, the long skeleton to be clamped is placed on the load plate 2. At this time, the piston rod of the drive cylinder 301 is retracted, and the two linkage slides 303 on the sides move closer to each other. Under the action of the linkage slides 303, the two clamping plates 5 move closer to each other. In this process, the clamping plate 5 will center and clamp the long skeleton. When drilling the long skeleton later, the external drilling mechanism is translated and abuts against the end of the long skeleton to drill the long skeleton from top to bottom.
[0023] The above examples are used to further illustrate the present application, but the present application is not limited to these specific embodiments. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application should be understood as within the protection scope of the present application.
Claims
1. A multi-point clamping mechanism for a long automotive frame, characterized in that: The utility model provides a kind of double-sided clamping device, including clamping base (1), two-way drive assembly and load plate (2) are fixedly connected on the clamping base (1), the two-way drive assembly includes drive cylinder (301) and drive slide (302), two linkage slides (303) are slidably connected on the clamping base (1) and located drive slide (302) side, drive connecting rod (304) is hinged between drive slide (302) and linkage slide (303), linkage clamping assembly is provided on the clamping base (1) and located load plate (2) both sides, the linkage clamping assembly includes linkage push arm (401) and clamping plate (5), first connecting rod (402) is hinged on the clamping base (1) and clamping plate (5), second connecting rod (403) is hinged on linkage push arm (401), the both ends of second connecting rod (403) are respectively hinged with the first connecting rod (402) on the clamping base (1) and clamping plate (5), and the both ends of clamping plate (5) are detachably connected with chuck (6).
2. The multi-point clamping mechanism for long chassis linkage of an automobile according to claim 1, characterized in that: The sliding direction of the linkage slide (303) is perpendicular to the sliding direction of the drive slide (302), and the two linkage slides (303) are mirror-imaged on the clamping base (1) along the drive slide (302).
3. The multi-point clamping mechanism for long chassis of an automobile according to claim 1, characterized in that: The linkage push arm (401) is fixedly connected with the drive slide (302), and the side wall of the clamping plate (5) is fixedly connected with a guide column.
4. The multi-point clamping mechanism for long chassis of an automobile according to claim 3, characterized in that: The both ends of the linkage push arm (401) are inclined to the clamping plate (5), and the load plate (2) is arranged in a staggered manner with the clamping plate (5).
5. The multi-point clamping mechanism for long chassis of an automobile according to claim 1, wherein: The both ends of the clamping plate (5) are provided with adjusting grooves (501), and the chuck (6) is fixed on the adjusting grooves (501) by screws.
6. The multi-point clamping mechanism for long chassis of an automobile according to claim 5, characterized in that: The chuck (6) includes a backing plate (601) and a silica gel sheet (602), the backing plate (601) is slidably connected with the adjusting grooves (501), and the silica gel sheet (602) is fixed on the clamping surface of the backing plate (601).